CN205127122U - Simple and convenient external device of vacuum aspiration - Google Patents
Simple and convenient external device of vacuum aspiration Download PDFInfo
- Publication number
- CN205127122U CN205127122U CN201520965893.3U CN201520965893U CN205127122U CN 205127122 U CN205127122 U CN 205127122U CN 201520965893 U CN201520965893 U CN 201520965893U CN 205127122 U CN205127122 U CN 205127122U
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- trachea
- utility
- model
- nest plate
- discharge orifice
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Abstract
The utility model discloses a simple and convenient external device of vacuum aspiration, including trachea and branch discharge orifice control nest plate, tracheal both ends are provided with air inlet and gas outlet respectively, be provided with unequal minute discharge orifice of a plurality of diameter on the same circumference position on the trachea, divide discharge orifice control nest plate suit in on the trachea, be provided with the guide hole on the branch discharge orifice control nest plate, the utility model discloses can be through changing the size of dividing the discharge orifice in the twinkling of an eye, the time that makes medical personnel adjust negative pressure suction device then shortens by a wide margin, the probability that also can make the pressure adjustment mistake appear simultaneously descends at double, the utility model relates to a structure is retrencied, and the maintenance cost in later stage is also very low.
Description
Technical field
This utility model relates to a kind of easy vacuum suction external device.
Background technology
The pressure export valve of existing medical negative pressure suction device equipment can only the problem of linear regulation negative pressure.Owing to needing different negative pressure comparatively accurately under different scenes, existing equipment can only go linear regulation by valve knob, cannot fast accurate be adjusted to required negative pressure index, and do not have now external equipment can head it off yet, therefore waste the quality time that medical personnel give emergency treatment to a patient.
Utility model content
The technical problems to be solved in the utility model is the defect overcoming prior art, provides a kind of easy vacuum suction external device, makes the negative pressure external equipment of access can specify negative pressure by quick obtaining in clinical practice, saves the quality time that medical personnel give emergency treatment to a patient.
In order to solve the problems of the technologies described above, this utility model provides following technical scheme:
A kind of easy vacuum suction external device of this utility model, comprise trachea and tap hole control nest plate, the two ends of described trachea are respectively arranged with air inlet and gas outlet, same circumferential position on described trachea is provided with the tap hole that several diameters do not wait, described tap hole controls nest plate and is set on described trachea, and described tap hole controls nest plate is provided with guide hole.
As a kind of optimal technical scheme of the present utility model, described trachea and described tap hole control nest plate and are described trachea that steel or polypropylene material make and described tap hole controls nest plate.
The beneficial effect that this utility model reaches is: this utility model can, by changing the size of tap hole instantaneously, make medical personnel regulate the time of negative pressure suction device significantly to shorten then; The probability that pressure simultaneously also can be made to regulate mistake to occur declines at double; This utility model project organization is simplified, and the maintenance cost in later stage is also very low.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for description, is used from explanation this utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is primary structure schematic diagram of the present utility model;
Fig. 2 is that the tap hole in Fig. 1 controls nest plate structural representation;
In figure: 1, trachea; 2, air inlet; 3, gas outlet; 4, tap hole; 5, tap hole controls nest plate; 6, guide hole.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of this utility model, and be not used in restriction this utility model.
Embodiment 1
As shown in Figure 1-2, a kind of easy vacuum suction external device, comprise trachea 1 and tap hole control nest plate 5, the two ends of described trachea 1 are respectively arranged with air inlet 2 and gas outlet 3, same circumferential position on described trachea 1 is provided with the tap hole 4 that several diameters do not wait, described tap hole controls nest plate 5 and is set on described trachea 1, and described tap hole controls nest plate 5 is provided with guide hole 6.
Described trachea 1 and described tap hole control nest plate 5 and are described trachea 1 that steel or polypropylene material make and described tap hole controls nest plate 5.
The present invention is realized by hydromechanical Bernoulli equation principle design, at air inlet 2, air inlet 2 and gas outlet 3 area of device are all S0, air inlet flow velocity is V0, all constant, preset the negative pressure of trachea 1 gas outlet 3, as long as the tap hole 4 size Δ S of negative pressure external device can be calculated by Bernoulli equation.
p0+(ρv02)/2＝p1+(ρv12)/2
S0v0＝(S0+ΔS)v1
Wherein, p0 is the pressure of trachea 1 air inlet 2, for 75kpa, ρ is atmospheric density 1.29kg/m3, p1 is the pressure (determining according to preset value difference) of trachea 1 gas outlet 3, v0 is trachea 1 air inlet 2 air constant flow velocity, and v1 is the air velocity (determining according to preset value difference) of trachea 1 gas outlet 3, and Δ S is tap hole size.
From calculating, as when air inlet 2 negative pressure is 200mmHg, obtain the negative pressure of 100mmHg at gas outlet 3 place as want, then Δ S is required to be the half size of device portal area S0.
Tap hole 4 of the present utility model has multiple for adjustment.When needing different negative pressure, only need rotate tap hole and controlling nest plate 5, the tap hole 4 opening different rules by guide hole 6 can realize the quick control to negative pressure.
This utility model can, by changing the size of tap hole 4 instantaneously, make medical personnel regulate the time of negative pressure suction device significantly to shorten then; The probability that pressure simultaneously also can be made to regulate mistake to occur declines at double; This utility model project organization is simplified, and the maintenance cost in later stage is also very low.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, although be described in detail this utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. an easy vacuum suction external device, it is characterized in that, comprise trachea and tap hole control nest plate, the two ends of described trachea are respectively arranged with air inlet and gas outlet, same circumferential position on described trachea is provided with the tap hole that several diameters do not wait, described tap hole controls nest plate and is set on described trachea, and described tap hole controls nest plate is provided with guide hole.
2. the easy vacuum suction external device of one according to claim 1, is characterized in that, described trachea and described tap hole control nest plate and be described trachea that steel or polypropylene material make and described tap hole controls nest plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520965893.3U CN205127122U (en) | 2015-11-27 | 2015-11-27 | Simple and convenient external device of vacuum aspiration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520965893.3U CN205127122U (en) | 2015-11-27 | 2015-11-27 | Simple and convenient external device of vacuum aspiration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205127122U true CN205127122U (en) | 2016-04-06 |
Family
ID=55612948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520965893.3U Expired - Fee Related CN205127122U (en) | 2015-11-27 | 2015-11-27 | Simple and convenient external device of vacuum aspiration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205127122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315412A (en) * | 2020-11-04 | 2021-02-05 | 中国医学科学院北京协和医院 | Endoscope negative pressure adjusting device |
-
2015
- 2015-11-27 CN CN201520965893.3U patent/CN205127122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315412A (en) * | 2020-11-04 | 2021-02-05 | 中国医学科学院北京协和医院 | Endoscope negative pressure adjusting device |
| CN112315412B (en) * | 2020-11-04 | 2022-03-18 | 中国医学科学院北京协和医院 | Endoscope negative pressure adjusting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161127 |